Added timing test for BruteForceMatcher

tests/cv/src/abruteforcematcher.cpp → tests/cv/src/tabruteforcematcher.cpp

@@ -10,14 +10,19 @@ protected:
     void run( int );
 };
 
-BruteForceMatcherTest::BruteForceMatcherTest() : CvTest( "BruteForceMatcher", "BruteForceMatcher")
+struct CV_EXPORTS L2Fake : public L2<float>
 {
+};
+
+BruteForceMatcherTest::BruteForceMatcherTest() : CvTest( "BruteForceMatcher", "BruteForceMatcher::matchImpl")
+{
+    support_testing_modes = CvTS::TIMING_MODE;
 }
 
 void BruteForceMatcherTest::run( int )
 {
     const int dimensions = 64;
-    const int descriptorsNumber = 1024;
+    const int descriptorsNumber = 5000;
 
     Mat train = Mat( descriptorsNumber, dimensions, CV_32FC1);
     Mat query = Mat( descriptorsNumber, dimensions, CV_32FC1);
@@ -40,14 +45,32 @@ void BruteForceMatcherTest::run( int )
         }
     }
 
-    vector<int> matches;
-    BruteForceMatcher<L2<float> > matcher;
-    matcher.add( train );
-    matcher.match( query, matches );
+    vector<int> specMatches, genericMatches;
+    BruteForceMatcher<L2<float> > specMatcher;
+    BruteForceMatcher<L2Fake > genericMatcher;
+    specMatcher.add( train );
+    genericMatcher.add( train );
+
+
+    int64 time0 = cvGetTickCount();
+    specMatcher.match( query, specMatches );
+    int64 time1 = cvGetTickCount();
+    genericMatcher.match( query, genericMatches );
+    int64 time2 = cvGetTickCount();
+
+    float specMatcherTime = float(time1 - time0)/(float)cvGetTickFrequency();
+    ts->printf( CvTS::LOG, "Matching by matrix multiplication time s: %f, us per pair: %f\n",
+               specMatcherTime*1e-6, specMatcherTime/( descriptorsNumber*descriptorsNumber ) );
+
+    float genericMatcherTime = float(time2 - time1)/(float)cvGetTickFrequency();
+    ts->printf( CvTS::LOG, "Matching without matrix multiplication time s: %f, us per pair: %f\n",
+               genericMatcherTime*1e-6, genericMatcherTime/( descriptorsNumber*descriptorsNumber ) );
 
+    if( specMatches.size() != descriptorsNumber || genericMatches.size() != descriptorsNumber )
+        ts->set_failed_test_info( CvTS::FAIL_INVALID_OUTPUT );
     for( int i=0;i<descriptorsNumber;i++ )
     {
-        if( matches[i] != permutation.at<int>( 0, i ) )
+        if( specMatches[i] != permutation.at<int>( 0, i ) || genericMatches[i] != permutation.at<int>( 0, i ) )
         {
             ts->set_failed_test_info( CvTS::FAIL_MISMATCH );
             break;